Punch



H. D. SNYDER PUNCH July 3 1934.

Filed March 6, 1934 ATTORNEYS @alienated .Alu-ly 31, 1934 UNITED sTATasParam ermee PUNCH Harry D. Snyder, New York, N. Y. Application March 6,1934., serial No. 714,232 1o claims. (o1. 164-59) yThis niventionrelates to punches-of the type used to perforate sheetsV of papei` andthe like for binding and other purposes, and particularlyV to lockingdevices adapted to secure a gauge bar in predetermined and xed positionWith reference to the punch elements.

In punches of the kind hereinafter more fully described, it is customaryto provide a. gauge bar which is movable transversely of the base of thepunch and adapted to provide a stop for the edge of the sheet to bepunched. Thus the holes 'in successive sheets may be spaced uniformlyfrom the edges Aof the sheets. The gauge may be adjusted when necessaryto accommodate sheets -of varying sizes.

It is the object of the present invention to providesimple and effectivemeans for locking the gauge bar in the desired position so that it willnot be moved accidentally during the punching of a multiplicity ofsheets, thereby preventing the punching of holes in other than thevdesired positions.

Other objects and advantages of .the invention will be apparent as it isbetter understood by reference to the following specification andaccompanying drawing, in which Fig. 1 vis a plan view of a punchembodying the invention;

Fig. 2 is a section on the line 2--2 of Fig. 1; Fig. 3 is an 4enlargedsectional View of a portion of the punch base and locking device, asshown in Figs. 1 and 2;

Fig. 4. is a fragmentary plan view partially in section illustrating amodified form of the locking device;

Fig. 5 is an enlarged sectional View on the line 5-5 of Fig. 4;

Fig. 6 is a fragmentary plan View partially in section illustratinganother form of the locking device; and

Fig. 'l is a side elevation of the punch as shown in Fig. 6.

In carrying out the invention, a wedging device is provided which isadapted to be moved into engagement with the gauge bar extendingtransversely of the base of the punch. The wedging device may vary inform. Thus, it may be a simple Wedge supported suitably in the base andadapted to be moved into engagement with the gauge bar. Alternatively,the Wedging device may be pivoted, taking the form of a cam or eccentricwhich, when turned about its pivot, will engage and wedge the gauge bar.Thus, by

a simple manual operation, the gauge bar may be lockedin anydesiredposition .or released to permit readjustment to another position.

Referring to. the drawing (Figs. 1 to 3` inclu.` sive) 5 indicates abaseof any suitable material having standards 6 which include guidewaysfor 6 punches '7 pivotally connected at 8 to-an operating handle 9. Theoperating handle is provided with pins 10 which are mounted in suitableopenings 11 in the standards 6, the ,openings 11 being somewhat largerthan the pins to permitirse movement of the punches 7 in theirguideways. A punch plate 12 is secured to the base 5 and is providedwith suitable openings beneath the punches so that sheets Whichareslipped under the punches may be perforated by depressing the 70 handle9.

A gauge lbar 13, ypreferalgvly split at 14 and having an upturned end15, is slidably supported in the base 5 beneath the plate 12. It may beprovided with suitable indicia A16 indicating the 75 spacing of the end15 from the. punches 7. I n using the device, the gauge bar 13 may beshifted transversely of the base, thereby aording a stop against whichthe Yedge of the sheet rests as it is introduced .beneath the punches.The S0 distance of the perforations Vfrom the edge .of the ,sheet isthus lfixed. The lsplit `gauge bar lensures sufficient friction so thatthe gauge bar does not slide too easily in the base. Nevertheless tliegauge bar may be displaced by force ap- V plied to the upturned end 15.

To avoid such displacement, the present invention provides a Wedgemember 17 slidably mounted in a recess 18 in the base. An upturned end19 permits manual operation of the Wedge, which 90' may be moved fromthe position indicated in Fig. 3 to that indicated in Figs. 1 and 2, inwhich the free end is interposed between the plate 12 and the gauge bar13, thereby locking the gauge bar in the adjusted position. By releasingthe wedge, the gauge bar is readily released.

In Figs. 4 and 5, I have illustrated another form of the invention inwhich the base 20 is provided with standards 21 similar tol thestandards 6 and a punch plate 22 having openings 23 similar to 100 thepunch plate 12. A gauge bar 24 With an upturned end 25 is slidablymounted in the base beneath the punch plate. A recess 26 in the base isformed preferably with rounded edges 27 to receive a wedge member 28 inthe form of a cam or 105 eccentric With an operating handle 29. Bymoving the handle 29 from the position indicated in dotted lines in Fig.4 to the positionindicated in full lines, the wedging member engages thegauge bar 24 and locks it in adjusted position. 0

In Figs. 6 and 7, a base 30 is provided with standards 31 which may beof pressed metal instead of the solid construction illustrated in Figs.1 and 4. Guideways are provided for punches 32 which are actuated by thehandle 33 pivoted at 34 to the punches and supported by pins 35 in thestandards 31.

A gauge bar 36 With an upwardly directed end 37 is slidably mounted inthe base 30. To look the gauge bar in any desired position, a Wedgingmember in the form of a cam or eccentric 38 is pivoted by means of ascrew 39 at the side of the base and is adapted to engage the under sideof the gauge bar 36. An operating handle 40 permits movement of theWedging member to lock or release the gauge bar.

The several embodiments of the invention herein illustrated anddescribed indicate the principle and mode of operation of the lockingdevice or gauge bars as hereinafter claimed. These locking devices aresimple and effective, and enable the operator to adjust and lock thegauge bar in any desired position. When the gauge bar is thus held, itwill not be displaced accidentally during the punching of a multiplicityof sheets. Consequently, all of the punched holes will registeraccurately, and binding of the sheets is facilitated.

Various changes may be made in the form and arrangement of the variousparts without departing from the invention or sacricing any of theadvantages thereof.

I claim:

1. In a punch, a base, a gauge bar movable A transversely thereof andmanually operable Wedging means supported on the base at one side of thegauge bar and adapted to be moved into engagement with the gauge bar tosecure it frictionally in adjusted position.

y 2. In a punch, a base, a gauge bar movable transversely thereof andmanually operable Wedging means slidably supported on the base at oneside of the gauge bar and adapted to be moved into engagement with thegauge bar to secure it frictionally in adjusted position.

3. In a punch, a base, a gauge bar movable transversely thereof andmanually operable Wedging means pivotally supported on the base at oneside of the gauge bar and adapted to be moved into engagement with thegauge bar to secure it frictionally in adjusted position.

4. In a punch, a base, a punch plate, a gauge bar movable transverselythereof and manually operable Wedging means supported on the base at oneside of the gauge bar and adapted to be moved into engagement with thegauge bar to secure it frictionally in adjusted position.

5. In a punch, a base, a punch plate, a gauge bar movable transverselythereof and manually operable Wedging means slidably supported on thebase at one side of the gauge bar and adapted to be moved intoengagement with the gauge bar to secure it frictionally in adjustedposition.

6. In a punch, a base, a punch plate, a gauge bar movable transverselythereof and manually operable Wedging means pivotally supported on thebase at one side of the gauge bar and adapted to be moved intoengagement with the gauge bar to secure it frictionally in adjustedposition.

7. In a punch, a base having a recess, a punch plate partially coveringthe recess, a gauge bar movable transversely 'of the base and manuallyoperable vvedging means supported in the recess and adapted to be movedinto engagement With the gauge bar to secure it in adjusted position.

8. In a punch, a base having a recess, a punch plate partially coveringthe recess, a gauge bar movable transversely of the base and manuallyoperable vvedging means slidably supported in the recess and adapted tobe moved into engagement with the gauge bar to secure it in adjustedposition.

9. In a punch, a base having a recess, a punch plate partially coveringthe recess, a gauge bar movable transversely of the base and manuallyoperable Wedging means pivotally supported in the recess and adapted tobe moved into engagement With the gauge bar to secure it in adjustedposition.

10. In a punch, a base, a split gauge bar movable transversely thereofand manually operable Wedging means supported on the base and adapted tobe moved into engagement with the gauge 1f bar to secure it in adjustedposition.

HARRY D. SNYDER.

